In the Calvin cycle, the reduction of one molecule of CO2 requires 3 ATP and 2 NADPH2 to complete one cycle. For the formation of one molecule of glucose, six turns of the Calvin cycle or six molecules of CO2 are required. Hence, 18 ATP and 12 NADPH2 are required for the synthesis of one molecule of glucose.
How many ATP and NADPH_2, are required for the synthesis of one molecule of Glucose during Calvin cycle?
NEET UG 2023 — Botany Photosynthesis in Higher Plants
How many ATP and NADPH2, are required for the synthesis of one molecule of Glucose during Calvin cycle?
Held on 30 Apr 2023 · Verified 9 Jul 2026.
Options
- A
18 ATP and 16 NADPH2
- B
12 ATP and 12 NADPH2
- C
18 ATP and 12 NADPH2
- D
12 ATP and 16 NADPH2
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More NEET UG Photosynthesis in Higher Plants questions
Which of the following statements about RuBisCO is true?
Match List I with List II: $\begin{array}{|l|l|l|l|}\hline & \text{List - I} & & \text{List - II} \\\hline \text{A}. & \text{Chlorophyll a} & \text{(i)} & \text{Yellow-green} \\\hline \text{B.} & \text{Chlorophyll b} & \text{(ii)} & \text{Yellow} \\\hline \text{C.} & \text{Xanthophylls} & \text{(iii)} & \text{Blue-green} \\\hline \text{D.} & \text{Carotenoids} & \text{(iv)} & \text{Yellow to Yellow-orange} \\\hline\end{array}$ Choose the option with all correct matches.
How many molecules of ATP and NADPH are required for every molecule of $\mathrm{CO}_2$ fixed in the Calvin cycle?
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option. 
Given below are two statements: Statement I: In $\mathrm{C}_3$ plants, some $\mathrm{O}_2$ binds to RuBisCO, hence $\mathrm{CO}_2$ fixation is decreased. Statement II: In $\mathrm{C}_4$ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration. In the light of the above statements, choose the correct answer from the options given below:
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